Re: Side effect of r35304: "Use GSSelectorTypesMatch() for types comparison..."

[David Chisnall]

On 19 Aug 2012, at 22:25, Ivan Vučica wrote:

> This code takes care of possibility that CGPoint, the native point type that 
> I work with, has different data types than NSPoint. Under GNUstep, it trips 
> up in case the data types are the same.
> 

It sounds like you're spending a lot of effort working around obscure corner 
cases that almost certainly will never appear in the wild.  CGPoint and NSPoint 
are supposed to be identical and code is allowed to cast between them and, more 
importantly, lots of existing code casts between arrays of NSPoint and arrays 
of CGPoint.  

C structs are just blobs of memory.  If they are structurally equivalent then, 
for all practical purposes, they are interchangeable.

David

-- Sent from my PDP-11